* maint:
  Correct common spelling mistakes in comments and tests
  kwset: fix spelling in comments
  precompose-utf8: fix spelling of "want" in error message
  compat/nedmalloc: fix spelling in comments
  compat/regex: fix spelling and grammar in comments
  obstack: fix spelling of similar
  contrib/subtree: fix spelling of accidentally
  git-remote-mediawiki: spelling fixes
  doc: various spelling fixes
  fast-export: fix argument name in error messages
  Documentation: distinguish between ref and offset deltas in pack-format
  i18n: make the translation of -u advice in one go